Octagonal silica toroidal microcavity for controlled optical coupling

Takumi Kato, Wataru Yoshiki, Ryo Suzuki, Takasumi Tanabe

研究成果: Article査読

17 被引用数 (Scopus)

抄録

We fabricated polygonal silica toroidal microcavities to achieve stable mechanical coupling with an evanescent coupler such as a tapered fiber. The octagonal cavity was fabricated by using a combination of isotropic etching, anisotropic etching, and laser reflow. It offers both high and low coupling efficiencies with the cavity mode even when the coupler is in contact with the cavity, which makes the device more practically because of easy alignment. A numerical simulation showed that an octagonal silica toroidal microcavity had an optical quality factor of 8.8 × 10 6.

本文言語English
論文番号121101
ジャーナルApplied Physics Letters
101
12
DOI
出版ステータスPublished - 2012 9 17

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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